Interxion
Corporate brand
UnclaimedEuropean carrier- and cloud-neutral data-centre colocation and interconnection provider.
Last updated August 31, 2026
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Overview
Interxion is a European data-centre services brand specializing in carrier-neutral colocation, interconnection, and access to cloud and digital ecosystems. The business was established in the Netherlands in 1998 and built its proposition around locating customer infrastructure in secure facilities where multiple telecommunications carriers, internet service providers, internet exchanges, cloud platforms, content networks, and enterprise customers can connect directly. Rather than operating as a telecommunications carrier itself, Interxion provides the physical and operational environment in which customers deploy servers, storage, network equipment, and other information-technology infrastructure. Its core colocation service combines data-centre space, electrical power, physical security, environmental controls, and operational support. Complementary services have included systems monitoring, systems management, engineering assistance, backup and storage, and connectivity to carriers and internet exchanges. This model is designed to reduce the distance and complexity between networks and their customers while improving resilience, performance, and access to digital partners. Interxion’s facilities have hosted global, regional, and national network operators, as well as enterprises and digital-content, financial-services, media, cloud, and IT-services companies. The company developed a metropolitan European footprint, with facilities in major connectivity markets including Amsterdam, Dublin, Frankfurt, London, Madrid, and Paris, as well as Marseille, which serves as an important Mediterranean internet gateway. Reference material describes a network of 53 data centres in 11 European countries and approximately 1,500 customers. Its facilities provided access to more than 400 carriers and internet service providers and hosted 18 European internet exchanges, although these operating figures are historical and may have changed following integration into Digital Realty. Interxion also emphasized business continuity, information security, and energy efficiency. Its certifications and management systems included ISO 27001-related information-security controls and BS 25999 business-continuity certification. The company joined The Green Grid and investigated measures such as free cooling, groundwater cooling, and reuse of waste heat. These initiatives reflected the operational importance of energy consumption and service continuity in data-centre infrastructure. Interxion became a public company through an initial public offering on the New York Stock Exchange in January 2011. A proposed 2015 combination with Telecity was terminated after Equinix announced its acquisition of TelecityGroup. In October 2019, Digital Realty and Interxion announced an $8.4 billion acquisition intended to combine Digital Realty’s global data-centre platform with Interxion’s European interconnection and colocation network. The transaction closed in March 2020, ending Interxion’s independent NYSE-listed status while preserving the Interxion name as a Digital Realty brand and operating platform. The company subsequently expanded its African exposure. In the first quarter of 2020, Interxion acquired a 70 percent interest in icolo.io, a Kenyan data-centre company, and in 2021 acquired controlling interests in Medallion, a Nigerian data-centre operator. These transactions extended the business beyond its traditional European base, although Interxion’s principal historical identity remains that of a European connectivity-focused colocation provider. Today, the brand is best understood within Digital Realty’s broader portfolio of data-centre, colocation, cloud-connectivity, and interconnection services.
History
Interxion was created in the Netherlands during the development of commercial internet infrastructure in Europe. European Telecom Exchange BV was incorporated on 6 April 1998 and was renamed Interxion Holding B.V. on 12 June of the same year. The company was founded by Bart van den Dries, with early venture funding supplied by Residex and informal investors. Its initial concept was to provide neutral facilities where competing telecommunications networks and other technology customers could place equipment and exchange traffic without being tied to a single carrier. The business expanded by developing and operating data centres in major European metropolitan areas. Its facilities supplied secure space, power, cooling, monitoring, and technical support for customer-owned computing and networking equipment. The carrier-neutral model allowed customers to select from numerous network providers and connect to internet exchanges, other customers, cloud platforms, and content networks. This created a network-effect proposition: the more carriers and digital businesses present in a facility, the more useful the site became to additional customers seeking connectivity and low-latency access. Interxion was converted into Interxion Holding N.V. on 11 January 2000. Over the following decade it built a broad European presence, including facilities in Amsterdam, Dublin, Frankfurt, London, Madrid, Paris, and Marseille. Marseille became associated with the company’s Internet Gateway strategy, linking European networks with Mediterranean and international routes. Historical company descriptions reported 53 data centres in 11 European countries, approximately 1,500 customers, more than 400 carriers and ISPs, and 18 internet exchanges across the footprint. The company also formalized operational resilience and security practices. Its European operations were associated with ISO 27001 information-security certification and BS 25999 business-continuity certification. Interxion’s European Customer Service Centre used ITIL v3 training, while the company participated in organizations such as RIPE, Euro-IX, The Green Grid, and the Uptime Institute. Its environmental work included investigation of free cooling, groundwater cooling, and waste-heat reuse. Interxion joined The Green Grid in 2008 as a Contributor Member and participated in its Advisory Council. Interxion completed its initial public offering on the New York Stock Exchange on 28 January 2011. Public-company status supported continued investment in data-centre capacity and connectivity ecosystems. The company was also recognized in the data-centre industry: its Technology and Engineering Group received an Outstanding Contribution to the Data Centre Sector award at the 2010 Data Centre Europe awards, and Interxion was a finalist for IT Operator of the Year in the 2011 Green IT Awards. In February 2015, Telecity announced a proposed acquisition of Interxion. The proposed combination was valued at approximately $2.2 billion for Interxion and was described as creating a joint operator worth around $4.5 billion, with management projecting approximately $600 million in synergy savings. The transaction did not proceed. In May 2015, Equinix announced that it would acquire TelecityGroup for £2.35 billion, terminating the Telecity-Interxion agreement. Interxion subsequently faced a local regulatory dispute in France. On 15 October 2015, the Montreuil administrative tribunal ordered the company to stop using its La Courneuve data centre after residents raised noise-pollution concerns. The matter illustrates the planning and community challenges associated with operating large, continuously running technical facilities in urban areas. The next major strategic transition came in October 2019, when Digital Realty and Interxion announced Digital Realty’s approximately $8.4 billion acquisition of Interxion. The parties presented the transaction as a way to combine Digital Realty’s global data-centre platform with Interxion’s European colocation and interconnection communities. The acquisition closed in March 2020. Interxion ceased to operate as an independent NYSE-listed company, but its name and market presence continued within Digital Realty. Interxion also expanded outside Europe around the time of the acquisition. In the first quarter of 2020 it acquired 70 percent of Kenya-based icolo.io. In 2021 it acquired controlling interests in Medallion, a data-centre operator in Nigeria. These investments extended the platform’s geographic reach into African markets. As part of Digital Realty, Interxion is now primarily an operating brand and heritage platform associated with carrier-neutral colocation, interconnection, cloud access, and dense digital ecosystems, rather than an independent listed corporation.
- 2020
Acquisition by Digital Realty closes
[1]Digital Realty completed its acquisition of Interxion in March 2020.
- 2019
Digital Realty announces acquisition
[1]Digital Realty announced an approximately $8.4 billion agreement to acquire Interxion and combine their data-centre and interconnection platforms.
- 2015
Proposed Telecity merger
[1]Telecity announced a proposed acquisition of Interxion, but the transaction was later terminated after Equinix agreed to acquire TelecityGroup.
- 2011
New York Stock Exchange IPO
[1]Interxion completed its initial public offering on the New York Stock Exchange on 28 January 2011.
- 2010
Technology and Engineering Group receives industry award
[1]Interxion’s Technology and Engineering Group was recognized for an outstanding contribution to the data-centre sector at the Data Centre Europe awards.
- 2008
Joins The Green Grid
[1]Interxion joined The Green Grid as a Contributor Member and participated in its Advisory Council, supporting work on data-centre efficiency.
- 2000
Corporate conversion to Interxion Holding N.V.
[1]The company was converted into Interxion Holding N.V. on 11 January 2000.
- 1998
European Telecom Exchange is incorporated
[1]European Telecom Exchange BV was incorporated in the Netherlands on 6 April 1998 and renamed Interxion Holding B.V. in June.
Products and positioning
A connectivity-led, carrier- and cloud-neutral data-centre provider focused on dense European metropolitan ecosystems where enterprises, networks, cloud providers, content platforms, and digital-service companies can colocate and interconnect.
Data-centre infrastructure · 1998
Carrier-neutral colocation
Interxion provides secure data-centre space, power, cooling, physical protection, and operational environments for customer-owned servers, storage, network equipment, and other IT infrastructure. The facilities are carrier-neutral, allowing customers to choose among multiple telecommunications and internet-service providers rather than being restricted to one network.
Network connectivity
Interconnection services
Interconnection services enable customers to establish direct links with carriers, ISPs, internet exchanges, cloud providers, content networks, and other organizations located in the same facilities or connected campuses. The proposition is intended to improve network choice, reduce latency, and simplify access to a dense digital ecosystem.
Cloud infrastructure
Cloud connectivity
Interxion’s colocation environments support access to cloud and IT-service providers, allowing enterprises and network customers to combine colocated infrastructure with public, private, and hybrid cloud resources. Cloud access is part of the broader interconnection model rather than a standalone hyperscale-cloud brand.
Data-centre operations
Managed technical and resilience services
Additional services have included systems monitoring, systems management, engineering support, backup, storage, and business-continuity support. These offerings complement the physical colocation environment by helping customers operate and protect deployed infrastructure.
Connectivity hub
Internet Gateway Marseille
The Marseille presence functions as an important connectivity location within Interxion’s historical European network. Its strategic value derives from the city’s role as a Mediterranean gateway and from the concentration of network routes, carriers, and subsea-cable connectivity available to customers.
Brand decisions
2021
Controlling investment in MedallionM&ABackground
Interxion continued expanding its African data-centre presence after the Digital Realty acquisition.
Action taken
Interxion acquired controlling stakes in Medallion, a Nigerian data-centre operator.
Aftermath
The investment strengthened the platform’s position in Nigeria, although detailed transaction terms are not specified in the available reference material.
2020
Majority investment in icolo.ioM&ABackground
Interxion sought to extend its data-centre platform into African markets.
Action taken
Interxion acquired a 70 percent interest in Kenyan data-centre company icolo.io.
Aftermath
The transaction expanded Interxion’s geographic reach into East Africa within the broader Digital Realty transition.
2019
Agreement to be acquired by Digital RealtyM&ABackground
Interxion and Digital Realty pursued a combination to create a broader global provider of data-centre, colocation, and interconnection services.
Action taken
Digital Realty agreed to acquire Interxion for approximately $8.4 billion.
Aftermath
The transaction closed in March 2020. Interxion lost its independent listed-company status but continued as a Digital Realty brand and platform.
Acquisition value. $8.4 billion (Announced October 2019; completed March 2020)
2015
Pursuit of the proposed Telecity combinationM&ABackground
Telecity and Interxion sought to combine their European data-centre operations at a time of consolidation in the colocation industry.
Action taken
Telecity announced a proposed acquisition of Interxion valued at approximately $2.2 billion, with projected operating synergies.
Aftermath
The transaction was terminated after Equinix announced an agreement to acquire TelecityGroup.
Proposed acquisition value. $2.2 billion (2015)
- Equinix — Equinix announced its own acquisition of TelecityGroup, ending the proposed Telecity-Interxion transaction.
Recent events
- Unconfirmed
Interxion acquires Altus IT[3]
Interxion acquired Croatia-based data center provider Altus IT, establishing a presence in Croatia and gaining access to more than 100 regional customers.
- Unconfirmed
Reported
Interxion acquires Frankfurt campus freehold[4]
Interxion acquired the freehold to the land under its Hanauer Landstraße campus in Frankfurt, including nine data centres previously subject to leasehold agreements.
Sources5 sources
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